Tab Sync in React Next.js Explained

Hot take: most React apps are over-engineered. After 7 years and hundreds of codebases, here's what I see teams reach for vs what they actually needed: ❌ Redux → ✅ Zustand ❌ Custom fetch everywhere → ✅ React Query ❌ Design system from scratch → ✅ Shadcn + Tailwind ❌ pages/components/hooks/utils folders → ✅ Feature-based folders Simple is not lazy. Simple is a decision. Match your tool to your problem — not to what the last senior dev you admired was using. Which one do you still see in production in 2026? 👇 #ReactJS #Frontend #JavaScript #FrontendEngineering #TypeScript #WebDevelopment #SoftwareEngineering

Are you mutating state directly in React? 🛑 If you are using methods like ".push()" on your state arrays, you might be causing hidden UI bugs and skipped re-renders. React relies on immutability to track changes and keep your app running smoothly. Swipe through to see the wrong way, the right way, and exactly why immutability matters in React! 👇 What is your preferred way to handle complex state objects? Let me know in the comments! #ReactJS #WebDevelopment #Frontend #CodingTips #webDev #javascript #frontendInterview

How I improved React performance using lazy loading One of the biggest bottlenecks in React apps is large bundle size slowing down initial load. Here's what worked for me: Used React.lazy() to split components Wrapped components with Suspense fallback Loaded heavy modules only when needed Combined with dynamic imports for routes Results: Faster initial load time Better user experience Improved Lighthouse scores Small changes big impact. What performance optimizations have you used in React? #Reactjs #FrontEnd #webDevelopment #Performance #JavaScript #Redux

Recently worked on optimizing a React app and improved Core Web Vitals by ~35%. Key learnings: • Code splitting makes a huge difference • Avoid unnecessary re-renders • Always measure before optimizing Curious — what’s your go-to performance trick? #frontend #reactjs #nextjs #webperformance #corewebvitals #javascript #typescript #softwareengineering #performanceoptimization

Stop losing your app data on page refresh! 🔄 This breakdown of Persistent State in React covers the "Why" and the "How," including a clean custom hook using localStorage. Perfect for creating a more seamless user experience. #ReactJS #WebDevelopment #Frontend #CodingTips #JavaScript

🚀 How I improved React performance using lazy loading One of the biggest bottlenecks in React apps is large bundle size slowing down initial load. Here’s what worked for me: ✅ Used React.lazy() to split components ✅ Wrapped components with Suspense fallback ✅ Loaded heavy modules only when needed ✅ Combined with dynamic imports for routes 📈 Results: • Faster initial load time • Better user experience • Improved Lighthouse scores Small changes → big impact. What performance optimizations have you used in React? #React #FrontEnd #webDevelopment #Performance #JavaScript #NextJS

This small React mistake can break your entire app 👇 Many developers write code like this: if (condition) return null; useEffect(() => { // logic }, []); Looks fine, right? ❌ But it can cause a serious error. 💥 Error: "Rendered fewer hooks than expected" 🔍 Why this happens React has a strict rule: 👉 Hooks must be called in the same order on every render 📌 What actually happens: • 1st render → early return → useEffect NOT called • 2nd render → useEffect called 👉 Hook order mismatch = 💣 error ✅ Fix Always call hooks first, then apply conditions: useEffect(() => { // logic }, []); if (condition) return null; 💡 Rule to remember: Never call hooks conditionally. Keep them at the top level. Have you ever faced this error before? 👇 #react #nextjs #javascript #webdevelopment #frontend

I think this is a common mistake among beginners. If you're a beginner and want to avoid this, it's better to use ESLint or Biome. I recommend using Biome it's faster, and the default settings are actually pretty good 🤩

Stop overusing useEffect, Most of the time... you don't need it. And when you do (data fetching), tools like React Query already do it better. Less effects = cleaner React apps. Are you overusing useEffect? Read more: https://lnkd.in/ddMR-8DH⁠ #React #WebDev #Frontend #JavaScript #BestPractices

I improved performance in my React app today 🚀 The problem: Slow loading and unnecessary re-renders. What I changed: • Implemented lazy loading (React.lazy) • Applied code splitting • Optimized API calls • Reduced unnecessary state updates Result: ⚡ Faster load time ⚡ Smoother user experience Lesson: Performance is not a feature. It’s a responsibility. What’s one performance trick you always use? #reactjs #performance #webdevelopment #javascript #frontenddeveloper